Title:
LUBRICATING OIL COMPOSITIONS
Document Type and Number:
WIPO Patent Application WO/2010/077757
Kind Code:
A3
Abstract:
A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 400 ppm of boron; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.
Inventors:
NELSON KENNETH D (US)
BOFFA ALEXANDER B (US)
KLEISER WILLIAM M (US)
STULTS STEPHEN D (US)
MCGEEHAN JAMES A (US)
VAN DAM WIM (NL)
CHERPECK RICHARD E (US)
BOFFA ALEXANDER B (US)
KLEISER WILLIAM M (US)
STULTS STEPHEN D (US)
MCGEEHAN JAMES A (US)
VAN DAM WIM (NL)
CHERPECK RICHARD E (US)
Application Number:
PCT/US2009/067434
Publication Date:
September 16, 2010
Filing Date:
December 10, 2009
Export Citation:
Assignee:
CHEVRON ORONITE CO (US)
NELSON KENNETH D (US)
BOFFA ALEXANDER B (US)
KLEISER WILLIAM M (US)
STULTS STEPHEN D (US)
MCGEEHAN JAMES A (US)
VAN DAM WIM (NL)
CHERPECK RICHARD E (US)
NELSON KENNETH D (US)
BOFFA ALEXANDER B (US)
KLEISER WILLIAM M (US)
STULTS STEPHEN D (US)
MCGEEHAN JAMES A (US)
VAN DAM WIM (NL)
CHERPECK RICHARD E (US)
International Classes:
C10M141/08; C10M125/00; C10M125/26; C10M135/02; C10M141/12; C10N40/25
Foreign References:
| US20060264342A1 | 2006-11-23 | |||
| US20030148895A1 | 2003-08-07 | |||
| US20030158048A1 | 2003-08-21 | |||
| US20070123437A1 | 2007-05-31 | |||
| US6855675B1 | 2005-02-15 |
Other References:
See also references of EP 2376612A4
Attorney, Agent or Firm:
CAROLI, Claude J. et al. (Law DepartmentPost Office Box 600, San Ramon California, US)
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